package com.longcai.cm.utils;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

@Component
public class SpringUtils implements ApplicationContextAware {

    private Logger logger = LoggerFactory.getLogger(SpringUtils.class);

    public static ApplicationContext context = null;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext)
            throws BeansException {
        logger.debug("set application context ===> " + applicationContext);
        context = applicationContext;
    }

    public static Object getBean(String beanName) throws BeansException {
        return context.getBean(beanName);
    }

    public static <T> T getBean(Class<T> clazz) throws BeansException {
        return (T) context.getBean(clazz);
    }


    //获取applicationContext    
    public static ApplicationContext getApplicationContext() {
        return context;
    }


    //通过name,以及Clazz返回指定的Bean    
    public static <T> T getBean(String name, Class<T> clazz) {
        return getApplicationContext().getBean(name, clazz);
    }

}